Overview

overview

10

Static

static

7

file.exe

windows10-2004-x64

10

file.exe

windows11-21h2-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    file.exe
  • Size 3.2MB
  • Sample251106-s7p14syrck
  • SHA256 7a3876b331ccea8dbb9a35183252575fc42646a55391de28528a021ab5e26dd3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
stealcbestworker8455735771defense_evasiondiscoveryspywarestealerthemidatrojan

Malware Config

Extracted

Family

  • stealc

Botnet

  • bestworker8455735771

C2

  • http://178.16.54.175

Attributes
  • url_path

    /fc98bed393364b52.php

rc4.plain

Targets

    • Target
      file.exe
    • Size 3.2MB
    • SHA256 7a3876b331ccea8dbb9a35183252575fc42646a55391de28528a021ab5e26dd3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    bestworker8455735771defense_evasiondiscoverystealcspywarestealerthemidatrojan

    • Stealc

      Stealc is an infostealer written in C++.

      stealerstealc

    • Stealc family

      stealc

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      defense_evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks